Vocabulary volcano- a weak spot in the crust where molten material, or magma comes to the surface magma- a molten material of rock-forming substances,water from the mantle, and gases lava- magma that has reached Earth's surface Ring of Fire- a major volcano belt formed by many volcanoes at the Pacific Rim island arc- a string of islands formed by the volcanoes along the deep ocean trench hot spot - an area where magma from deep within the mantle melts through the trench like a blow torch
Table of Contents
Section 3-1 Volcanoes and Plate Tectonics (back to homepage)
Vocabulary
volcano- a weak spot in the crust where molten material, or magma comes to the surface
magma- a molten material of rock-forming substances,water from the mantle, and gases
lava- magma that has reached Earth's surface
Ring of Fire- a major volcano belt formed by many volcanoes at the Pacific Rim
island arc- a string of islands formed by the volcanoes along the deep ocean trench
hot spot - an area where magma from deep within the mantle melts through the trench like a blow torch